Atrium (Black 4152) custom formicaria included them in comments box

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Myrmecocystus navajo forage at night and have typically have inconspicuous nest entrances

-Package Options Available ---- We use the Mini Hearth and the Lair formicaria as the favorite founding setups

Small/Medium Species

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Atrium (Black 4152) custom formicaria included them in comments boxSee More Information About the Atrium at this link. General Information: *****Due to the size of the open chambers, this formicarium is considered a small to medium sized formicarium and can hold an estimated 1,000 to 2,000 medium sized ants, larger species such as Camponotus, Formica and Myrmecocystus up to 1,000 (again, approximately). While it is quite possible some small species (Lasius spp.) will do quite well in the Atrium, estimating numbers